| 1 (863) | SRI International | USA |  |
| 2 (1279) | International Computer Science Institute | USA | |
| 3 (1458) | American Institute of Aeronautics and Astronautics | USA | |
| 4 (1476) | Battelle Memorial Institute | USA | |
| 5 (1621) | Santa Fe Institute | USA | |
| 6 (1654) | Louisiana State University Agricultural Center | USA | |
| 7 (1757) | Carnegie Institution for Science | USA | |
| 8 (1820) | Marine Biological Laboratory | USA | |
| 9 (2238) | Woods Hole Oceanographic Institution | USA | |
| 10 (2447) | Monterey Bay Aquarium Research Institute | USA | |
| 11 (2519) | Institute for Advanced Study | USA | |
| 12 (2640) | Electric Power Research Institute | USA | |
| 13 (2699) | Southwest Research Institute | USA | |
| 14 (3230) | Desert Research Institute, Reno | USA | |
| 15 (3351) | Regenstrief Institute | USA | |
| 16 (3916) | National Bureau of Economic Research | USA | |
| 16 (3916) | Universities Space Research Association | USA | |
| 18 (3925) | RAND Corporation | USA | |
| 19 (4291) | Perimeter Institute for Theoretical Physics | CAN | |
| 20 (4328) | International Monetary Fund | USA | |
| 20 (4328) | Kavli Institute for Particle Astrophysics and Cosmology | USA | |
| 20 (4328) | Wildlife Conservation Society USA | USA | |
|
